html,body,ul,li,ol,dl,dd,dt,p,h1,h2,h3,h4,h5,h6,form,fieldset,legend,img{margin:0;padding:0;font-size:12px;}
html,body{width: 100%;height: 100%;}
body{font:12px/20px "微软雅黑","Arial Narrow",HELVETICA;background:#fff;}
fieldset,img{border:none;vertical-align:middle;}
address,caption,cite,code,dfn,th,var{font-style:normal;font-weight:normal;}
ul,ol,li{list-style:none;}
a{color:#666;text-decoration:none;font-size:12px;}
input{border:0;background:none;}


html,body{width: 100%;height: 100%;}
header{width: 100%;height: 85px;background-color: #0d3f78}
.headtop{height: 45px;text-align: center;line-height: 45px;
color: white;font-size: 20px;font-weight: 800;}
nav{width:100%;height:40px;border-top:1px solid #777;border-top:1px solid #777;line-height:40px;background-color:black;}
nav ul{width: 100%;height: 100%;display: flex;}
nav li{width: 33%;height: 100%;text-align: center;align-items: center;justify-content: space-around;display: flex;}
nav a{width:80%;height:80%;display:block;background-color:#333;border-radius:20px;
color: #fff;line-height:32px;}


